Question

If the mean of the five observation is x, x+2,x+4,x+6,and x+8 is 11 the find the value of x

Answer 1

Given observations are x,x+2,x+4,x+6,x+8.

Given that number of observations = 5.

x + x + 2 + x + 4 + x + 6 + x + 8/5 = 11

5x + 20/(5) = 11

5x + 20 = 55

5x = 55 - 20

5x = 35

x = 7.

Therefore the value of x = 7.

Hope this helps!

Answer 2

5x+20/5=11
5x+20=11x5
5x=55-20
5x=35
X=35/5=7
Therefore the answer is 7